body {
  min-width: 200px;
  min-height: 100px;
}

h1 {
  display: flex;
  justify-content: center;
  font-size: 24px;
  color: #333;
}

.box {
  width: 100%;
  display: flex;
  justify-content: space-around;
  align-items: center;
}

button {
  display: block;
  padding: 10px 20px;
}
